| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [pron] [vb mod] [vb infin] [prep] | 237 |
|
| 2 | [prep] what [pron] [modal v] [vb infin] [prep] | 237 |
|
| 3 | [prep] [pron] [pron] could [vb infin] [prep] | 113 |
|
| 4 | [prep] what [pron] could [verb] [prep] | 35 |
|
| 5 | [prep] what [pron] could [vb infin] [prep] | 35 |
|
| 6 | [prep] what [pron] could [vb infin] [prep] | 35 |
|
